openwrt/target/linux/ath79/dts/ar9330_openmesh_om2p.dtsi
Sven Eckelmann eb3a5ddba0 ath79: Add support for OpenMesh OM2P-LC
Device specifications:
======================

* Qualcomm/Atheros AR9330 rev 1
* 400/400/200 MHz (CPU/DDR/AHB)
* 64 MB of RAM
* 16 MB of SPI NOR flash
  - 2x 7 MB available; but one of the 7 MB regions is the recovery image
* 2x 10/100 Mbps Ethernet
* 1T1R 2.4 GHz Wi-Fi
* 6x GPIO-LEDs (3x wifi, 2x ethernet, 1x power)
* 1x GPIO-button (reset)
* external h/w watchdog (enabled by default)
* TTL pins are on board (arrow points to VCC, then follows: GND, TX, RX)
* 2x fast ethernet
  - eth0
    + builtin switch port 1
    + used as LAN interface
  - eth1
    + 18-24V passive POE (mode B)
    + used as WAN interface
* 12-24V 1A DC
* internal antennas

Flashing instructions:
======================

Various methods can be used to install the actual image on the flash.
Two easy ones are:

ap51-flash
----------

The tool ap51-flash (https://github.com/ap51-flash/ap51-flash) should be
used to transfer the image to the u-boot when the device boots up.

initramfs from TFTP
-------------------

The serial console must be used to access the u-boot shell during bootup.
It can then be used to first boot up the initramfs image from a TFTP server
(here with the IP 192.168.1.21):

   setenv serverip 192.168.1.21
   setenv ipaddr 192.168.1.1
   tftpboot 0c00000 <filename-of-initramfs-kernel>.bin && bootm $fileaddr

The actual sysupgrade image can then be transferred (on the LAN port) to
the device via

  scp <filename-of-squashfs-sysupgrade>.bin root@192.168.1.1:/tmp/

On the device, the sysupgrade must then be started using

  sysupgrade -n /tmp/<filename-of-squashfs-sysupgrade>.bin

Signed-off-by: Sven Eckelmann <sven@narfation.org>
2020-12-30 23:32:07 +01:00

152 lines
2.4 KiB
Plaintext

// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
#include "ar9330.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
chosen {
/delete-property/ bootargs;
};
aliases {
serial0 = &uart;
led-boot = &led_power_blue;
led-failsafe = &led_power_blue;
led-running = &led_power_blue;
led-upgrade = &led_power_blue;
label-mac-device = &eth1;
};
keys {
compatible = "gpio-keys";
reset {
label = "reset";
linux,code = <KEY_RESTART>;
gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
};
};
leds {
compatible = "gpio-leds";
pinctrl-names = "default";
pinctrl-0 = <&switch_led_disable_pins>;
wifi_yellow {
label = "yellow:wifi";
gpios = <&gpio 0 GPIO_ACTIVE_LOW>;
};
led_power_blue: power_blue {
label = "blue:power";
gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
default-state = "on";
};
lan_blue {
label = "blue:lan";
gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
};
wifi_green {
label = "green:wifi";
gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
linux,default-trigger = "phy0tpt";
};
wifi_red {
label = "red:wifi";
gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
};
wan_blue {
label = "blue:wan";
gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
};
};
watchdog {
compatible = "linux,wdt-gpio";
gpios = <&gpio 26 GPIO_ACTIVE_LOW>;
hw_algo = "toggle";
/* hw_margin_ms is actually 300s but driver limits it to 60s */
hw_margin_ms = <60000>;
always-running;
};
};
&uart {
status = "okay";
};
&spi {
status = "okay";
flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <25000000>;
/* partitions are passed via bootloader */
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "u-boot";
reg = <0x000000 0x040000>;
read-only;
};
partition@40000 {
label = "u-boot-env";
reg = <0x040000 0x040000>;
};
partition@80000 {
label = "custom";
reg = <0x080000 0x140000>;
read-only;
};
partition@1c0000 {
label = "inactive";
reg = <0x1c0000 0x700000>;
};
partition@8c0000 {
label = "inactive2";
reg = <0x8c0000 0x700000>;
};
art: partition@fc0000 {
label = "ART";
reg = <0xfc0000 0x040000>;
read-only;
};
};
};
};
&eth0 {
status = "okay";
mtd-mac-address = <&art 0x6>;
};
&eth1 {
status = "okay";
mtd-mac-address = <&art 0x0>;
};
&wmac {
status = "okay";
mtd-cal-data = <&art 0x1000>;
};